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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Barry Wardell
*
* Based on Rockbox iriver bootloader by Linus Nielsen Feltzing
* and the ipodlinux bootloader by Daniel Palffy and Bernard Leach
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include "common.h"
#include "cpu.h"
#include "file.h"
#include "system.h"
#include "kernel.h"
#include "lcd.h"
#include "font.h"
#include "ata.h"
#include "button.h"
#include "disk.h"
#include "crc32-mi4.h"
#include <string.h>
#include "i2c.h"
#include "backlight-target.h"
/* Bootloader version */
char version[] = APPSVERSION;
#define START_SECTOR_OF_ROM 1
#define ROMSECTOR_TO_HACK 63
#define HACK_OFFSET 498
#define KNOWN_CRC32 0x5a09c266
char knownBytes[] = {0x00, 0x24, 0x07, 0xe1};
char changedBytes[] = {0xc0, 0x46, 0xc0, 0x46 };
void* main(void)
{
int i;
int btn;
int num_partitions;
int crc32;
char sector[512];
struct partinfo* pinfo;
chksum_crc32gentab ();
system_init();
kernel_init();
lcd_init();
font_init();
button_init();
i2c_init();
__backlight_on();
lcd_set_foreground(LCD_WHITE);
lcd_set_background(LCD_BLACK);
lcd_clear_display();
btn = button_read_device();
verbose = true;
lcd_setfont(FONT_SYSFIXED);
printf("Rockbox e200R installer");
printf("Version: %s", version);
printf(MODEL_NAME);
i=ata_init();
disk_init(IF_MV(0));
num_partitions = disk_mount_all();
if (num_partitions<=0)
{
error(EDISK,num_partitions);
}
pinfo = disk_partinfo(1);
printf("--- Partition info ---");
printf("start: %x", pinfo->start);
printf("size: %x", pinfo->size);
printf("type: %x", pinfo->type);
printf("reading: %x", (START_SECTOR_OF_ROM + ROMSECTOR_TO_HACK)*512);
ata_read_sectors(IF_MV2(0,)
pinfo->start + START_SECTOR_OF_ROM + ROMSECTOR_TO_HACK,
1 , sector);
crc32 = chksum_crc32 (sector, 512);
printf("--- Hack Status ---");
printf("Sector checksum: %x", crc32);
if ((crc32 == KNOWN_CRC32) &&
!memcmp(§or[HACK_OFFSET], knownBytes,
sizeof(knownBytes)/sizeof(*knownBytes)))
{
memcpy(§or[HACK_OFFSET], changedBytes,
sizeof(changedBytes)/sizeof(*changedBytes));
ata_write_sectors(IF_MV2(0,)
pinfo->start + START_SECTOR_OF_ROM + ROMSECTOR_TO_HACK,
1 , sector);
printf("Firmware Hacked");
printf("Proceed to Step 2");
}
else
printf("Unknown bootloader... aborted");
GPIOG_OUTPUT_VAL &=~0x80;
while(1);
return NULL;
}
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